India, Aug. 31 -- To reduce the risk of lung cancer, quitting smoking is one of the most important steps you can take. But still, some lingering risks remain, as the effects of past tobacco use may linger for years. So it makes one wonder: how can one shield themselves against this? Does exercise help provide additional protection?ALSO READ: Can your diet reduce breast cancer risk? Oncologist shares what to eat and avoid

Listen to an oncologist about exercise's role in mitigating health risks after smoking in the past. Dr Mohammad Mithi, consultant oncologist at Saifee Hospital, Mumbai, confirmed regular exercise may help, but with a few conditions. To what extent may it help?

But before we decode exercise, we asked about lung cancer's ...